CN205000936U - Shaft type casing hanger of two body cores - Google Patents
Shaft type casing hanger of two body cores Download PDFInfo
- Publication number
- CN205000936U CN205000936U CN201520732023.1U CN201520732023U CN205000936U CN 205000936 U CN205000936 U CN 205000936U CN 201520732023 U CN201520732023 U CN 201520732023U CN 205000936 U CN205000936 U CN 205000936U
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- sleeve pipe
- sealed
- casing hanger
- shaft type
- type casing
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Abstract
The utility model relates to a shaft type casing hanger of two body cores, it includes independent sleeve pipe reservation portion and the sealed portion of hanging, set up the upper and lower chamber that connects soon of longitudinal symmetry in the sealed portion of hanging, the top spin connects chamber and sleeve pipe reservation portion to connect soon, a sealed outer wall upper portion that hangs is provided with the protruding portion lay two O type sealing washers and two metal seal circles on the protruding portion from top to bottom respectively. This application changes the modularized design into by traditional easy damage part and sealed and the integral design of suspended portion. To easily decrease part (sleeve pipe reserved part) falls into two independent modules with sealed with suspended portion. Adopt FOX knot connection durable and that have outstanding gas tightness ability between two modules, make the sleeve pipe reserved part can realize change many times. And traditional two O type sealing washers and the design of two metal seal circle have been continued to use to the hermetic unit, have reliable sealing performance.
Description
Technical field
The utility model relates to a kind of two body core shaft type casing hanger.
Background technology
The effect of casing hanger is suspension sleeve post, and can give annular space between sleeve pipe and effectively seal.Used hanging device for slips casing realizes being tightly connected with upper level casing head or oil pipe four-way by the reserved sleeve pipe exceeding casing head upper flange surface; Now be connected with top wellhead assembly by the neck neck portion extended with mandrel type casing hanger.The reserved sleeve pipe extended or hanger neck need in drilling well, completion, well workover etc. frequently to remove, rotate in the operation process of tubing string and very easily damage or reduce intensity because of eccentric wear, and causing cannot normally pressure testing, becomes potential safety hazard.
Summary of the invention
The purpose of this utility model is for existing casing hanger reserved part rapid wear and the defect that cannot change, and provides a kind of modularization, is convenient to change easily worn part, and two body core shaft type casing hangers that suitable gas well at HTHP uses.
The purpose of this utility model is achieved in that two body core shaft type casing hanger, and it comprises independently sleeve pipe and reserves portion and sealed suspension portion, the laterally zygomorphic upper and lower chamber that spins is offered in described sealed suspension portion, spin on described chamber and the sleeve pipe portion of reserving spins, and end, portion reserved by described sleeve pipe is FOX button.Outer wall top, described sealed suspension portion is provided with protuberance, and described protuberance lays two O RunddichtringO and bimetallic (spring cone) seal circle from top to bottom respectively.
Owing to carrying out technique scheme, the application, by traditional frangible portions and sealing and suspended portion integral design, changes modularized design into.Frangible portions (sleeve pipe reserved part) and sealing and suspended portion are divided into two independently modules.Adopt the durable and FOX with outstanding air-tightness to link between two modules to connect, make sleeve pipe reserved part can realize repeatedly changing.And hermetic unit, continue to use traditional two O RunddichtringO and the design of bimetallic (spring cone) seal circle, there is reliable sealing performance.
Accompanying drawing illustrates: the technical solution of the utility model is provided by following drawings and Examples:
Fig. 1 is two body core shaft type casing hanger structural representations;
Fig. 2 is the schematic diagram that two body core shaft type casing hanger is arranged in casing head.
Legend: 1, portion reserved by sleeve pipe, 2, sealed suspension portion, 3, two O RunddichtringO, 4, bimetallic (spring cone) seal circle, 5, on to spin chamber, 6, under to spin chamber, 7, casing head.
Detailed description of the invention:
The utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Embodiment: as shown in Figure 1, two body core shaft type casing hanger comprises independently sleeve pipe and reserves portion 1 and sealed suspension portion 2, the laterally zygomorphic upper and lower chamber 5,6 that spins is offered in described sealed suspension portion 2, spin on described chamber 5 is reserved portion 1 with sleeve pipe and is spun, and end, portion 1 reserved by described sleeve pipe is FOX button.Outer wall top, described sealed suspension portion 2 is provided with protuberance, and described protuberance lays two O RunddichtringO 3 and bimetallic (spring cone) seal circle 4 from top to bottom respectively.
Form obtuse angle between described protuberance and sealed suspension portion 2 outer wall, described protuberance top and sealed suspension portion 2 form obtuse angle angle and are greater than described protuberance bottom and sealed suspension portion 2 forms obtuse angle angle.So advantageously being connected in coordinating with double male joint, strengthening sealing effectiveness.
Described protuberance bottom is undergauge structure.
During use, during use, first in workshop, sleeve pipe reserved part 1 is connected with chamber 5 that the utility model spins, double male joint is connected with the chamber 6 that spins under the utility model.Then job site is sent to.Drilling crew is lower dark in meet engineering design requirements with short sleeve (or selecting length sleeve pipe) adjusting sleeve tubing string.Again " sleeve pipe reserved part+the utility model+double male joint " is integrally attached on casing string.Finally the utility model is delivered to position, be steadily sitting in casing head, tighten jackscrew.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (4)
1. a two body core shaft type casing hanger, it is characterized in that: it comprises independently sleeve pipe and reserves portion and sealed suspension portion, the laterally zygomorphic upper and lower chamber that spins is offered in described sealed suspension portion, spin on described chamber and the sleeve pipe portion of reserving spins, outer wall top, described sealed suspension portion is provided with protuberance, and described protuberance lays two O RunddichtringO and bimetallic (spring cone) seal circle from top to bottom respectively.
2. two body core shaft type casing hanger as claimed in claim 1, is characterized in that: end, portion reserved by described sleeve pipe is FOX button.
3. two body core shaft type casing hanger as claimed in claim 1, it is characterized in that: form obtuse angle between described protuberance and sealed suspension portion outer wall, described protuberance top and formation obtuse angle, sealed suspension portion angle are greater than described protuberance bottom and formation obtuse angle, sealed suspension portion angle.
4. two body core shaft type casing hanger as claimed in claim 3, is characterized in that: described protuberance bottom is undergauge structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732023.1U CN205000936U (en) | 2015-09-22 | 2015-09-22 | Shaft type casing hanger of two body cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520732023.1U CN205000936U (en) | 2015-09-22 | 2015-09-22 | Shaft type casing hanger of two body cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205000936U true CN205000936U (en) | 2016-01-27 |
Family
ID=55157831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520732023.1U Active CN205000936U (en) | 2015-09-22 | 2015-09-22 | Shaft type casing hanger of two body cores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205000936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU211191U1 (en) * | 2021-12-15 | 2022-05-25 | Управляющая компания общество с ограниченной ответственностью "ТМС групп" | Stringing device with coupling high-tight suspension |
-
2015
- 2015-09-22 CN CN201520732023.1U patent/CN205000936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU211191U1 (en) * | 2021-12-15 | 2022-05-25 | Управляющая компания общество с ограниченной ответственностью "ТМС групп" | Stringing device with coupling high-tight suspension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |